20101250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1272

約数の個数: 40

約数和(自身を含む): 40608876

約数和(自身を除く): 20507626

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1237, 1250, 1625, 2474, 3250, 6185, 8125, 12370, 16081, 16250, 30925, 32162, 61850, 80405, 154625, 160810, 309250, 402025, 773125, 804050, 1546250, 2010125, 4020250, 10050625, 20101250]

約数ペア:

[(1, 20101250), (2, 10050625), (5, 4020250), (10, 2010125), (13, 1546250), (25, 804050), (26, 773125), (50, 402025), (65, 309250), (125, 160810), (130, 154625), (250, 80405), (325, 61850), (625, 32162), (650, 30925), (1237, 16250), (1250, 16081), (1625, 12370), (2474, 8125), (3250, 6185)]